Global Patent Index - EP 0879248 B1

EP 0879248 B1 2001-12-12 - CROSS-LINKING PRODUCTS OF AMINO-GROUP-CONTAINING BIOPOLYMERS

Title (en)

CROSS-LINKING PRODUCTS OF AMINO-GROUP-CONTAINING BIOPOLYMERS

Title (de)

VERNETZUNGSPRODUKTE VON AMINOGRUPPEN-HALTIGEN BIOPOLYMEREN

Title (fr)

PRODUIT DE RETICULATION DE BIOPOLYMERES CONTENANT DES GROUPES AMINO

Publication

EP 0879248 B1 (DE)

Application

EP 97901609 A

Priority

  • DE 19604706 A
  • EP 9700364 W

Abstract (en)

[origin: DE19604706A1] The invention relates to cross-linking products from chitosan or gelatine and a carboxylic acid dianhydride or carboxylic acid polyanhydride. Said products form hydrogels with a plurality of uses, preferably in the field of medicine and pharmacy.

IPC 1-7 (main, further and additional classification)

C08B 37/08; C08H 1/06; C09H 7/00

IPC 8 full level (invention and additional information)

C08B 37/08 (2006.01); C08H 1/06 (2006.01); C09H 7/00 (2006.01)

CPC (invention and additional information)

C09H 7/00 (2013.01); C08B 37/003 (2013.01); C08H 1/06 (2013.01)

Designated contracting state (EPC)

AT CH DE ES FR GB IT LI

EPO simple patent family

DE 19604706 A1 19970814; AR 005749 A1 19990714; AT 210683 T 20011215; AU 1545797 A 19970828; EP 0879248 A1 19981125; EP 0879248 B1 20011212; ES 2168136 T3 20020601; ID 15876 A 19970814; JP 2000504751 A 20000418; US 6509039 B1 20030121; WO 9729132 A1 19970814; ZA 9700984 B 19970818

INPADOC legal status


2006-04-16 [REG ES FD2A] ANNOUNCEMENT OF LAPSE IN SPAIN

- Effective date: 20050129

2005-11-04 [REG FR ST] NOTIFICATION OF LAPSE

2005-09-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2005-09-15 [REG CH PL] PATENT CEASED

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- Effective date: 20050128

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2002-12-04 [26N] NO OPPOSITION FILED

2002-06-01 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2168136 T3

2002-05-17 [ET] FR: TRANSLATION FILED

2002-03-27 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20020301

2002-01-24 [REF] CORRESPONDS TO:

- Document: DE 59705769 20020124

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-12-14 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT CH DE ES FR GB IT LI

2001-12-12 [REF] CORRESPONDS TO:

- Document: AT 210683 T 20011215

2001-09-05 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: NIES, BERTHOLD, DR.

2001-09-05 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: RITTER, WOLFGANG, DR.

2000-04-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20000303

1998-11-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980710

1998-11-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT CH DE ES FR GB IT LI